incidentEdgeOrder);
    ValueGraphBuilder<N1, V> newBuilder = cast();
    newBuilder.incidentEdgeOrder = checkNotNull(incidentEdgeOrder);
    return newBuilder;
  }

  /**
   * Returns an empty {@link MutableValueGraph} with the properties of this {@link
   * ValueGraphBuilder}.
   */
  public <N1 extends N, V1 extends V> MutableValueGraph<N1, V1> build() {
    return new StandardMutableValueGraph<>(this);
  }

// The loader is optimistic and has no locking, but tries 5 times before giving up.
// If the object is not found, a nil error with empty data usage cache is returned.
func (d *dataUsageCache) load(ctx context.Context, store objectIO, name string) error {
	// By default, empty data usage cache
	*d = dataUsageCache{}

	load := func(name string, timeout time.Duration) (bool, error) {

   * @since 27.1
   */
  Set<E> edgesConnecting(EndpointPair<N> endpoints);

  /**
   * Returns the single edge that directly connects {@code nodeU} to {@code nodeV}, if one is
   * present, or {@code Optional.empty()} if no such edge exists.
   *
   * <p>In an undirected network, this is equal to {@code edgeConnecting(nodeV, nodeU)}.
   *
   * @throws IllegalArgumentException if there are multiple parallel edges connecting {@code nodeU}

          Function<? super T, ? extends Stream<? extends V>> valuesFunction) {
    return CollectCollectors.flatteningToImmutableListMultimap(keyFunction, valuesFunction);
  }

  /**
   * Returns the empty multimap.
   *
   * <p><b>Performance note:</b> the instance returned is a singleton.
   */
  // Casting is safe because the multimap will never hold any elements.
  @SuppressWarnings("unchecked")

	if p := e.prev; e.list != nil && p != &e.list.root {
		return p
	}
	return nil
}

// LruList represents a doubly linked list.
// The zero Value for LruList is an empty list ready to use.
type LruList[K comparable, V any] struct {
	root Entry[K, V] // sentinel list element, only &root, root.prev, and root.next are used
	len  int         // current list Length excluding (this) sentinel element

func (e BucketAlreadyOwnedByYou) Error() string {
	return "Bucket already owned by you: " + e.Bucket
}

// BucketNotEmpty bucket is not empty.
type BucketNotEmpty GenericError

func (e BucketNotEmpty) Error() string {
	return "Bucket not empty: " + e.Bucket
}

// InvalidVersionID invalid version id
type InvalidVersionID GenericError

func (e InvalidVersionID) Error() string {

	sampleTimeStr := UTCNow().Format(yyyymmdd)
	testCases := []struct {
		inputV4AuthStr    string
		expectedAuthField signValues
		expectedErrCode   APIErrorCode
	}{
		// Test case - 1.
		// Test case with empty auth string.
		{
			inputV4AuthStr:    "",
			expectedAuthField: signValues{},
			expectedErrCode:   ErrAuthHeaderEmpty,
		},
		// Test case - 2.
		// Test case with no sign v4 Algorithm prefix.

     */
    public String normalizeConfigPath(final String path) {

        if (StringUtil.isBlank(path)) {
            return StringUtils.EMPTY;
        }

        final String p = path.trim();
        if (p.startsWith("#")) {
            return StringUtils.EMPTY;
        }

        if (p.startsWith(GsaConfigParser.CONTAINS)) {

            }
            break;
        default:
            break;
        }
        return OptionalEntity.empty();
    }

    /**
     * Get a boost document rule from a form.
     * @param form The create form.
     * @return An optional entity of a boost document rule.
     */

        PrefixQuery prefixQuery = new PrefixQuery(new Term("title", ""));

        QueryBuilder builder = queryProcessor.execute(context, prefixQuery, 1.0f);

        assertNotNull(builder);
        // Empty prefix should still create a valid query
        assertTrue(builder instanceof MatchPhrasePrefixQueryBuilder);

        MatchPhrasePrefixQueryBuilder mpqb = (MatchPhrasePrefixQueryBuilder) builder;